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Check "Software & Updates" App if sources are missing e.g. contrib, non-free ...

Append additional sources the sources.list file

Use "Settings" App to configure GNOME (deprecated, now using gsettings to set up everything, see next section)

Set up GNOME settings with terminal

# How to RESET any gnome settings back to default value
gsettings reset org.gnome.desktop.input-sources xkb-options
gsettings reset org.gnome.desktop.peripherals.touchpad natural-scroll
gsettings reset org.gnome.desktop.interface show-battery-percentage
# Mouse & Touchpad
gsettings set org.gnome.desktop.peripherals.touchpad tap-to-click true
gsettings set org.gnome.desktop.peripherals.touchpad natural-scroll false
gsettings set org.gnome.desktop.peripherals.mouse accel-profile 'flat'

# Window focus
gsettings set org.gnome.desktop.wm.preferences focus-mode 'sloppy'
gsettings set org.gnome.desktop.wm.preferences focus-mode 'click'
## [Focus "mouse" or "sloppy" do the same thing on gnome-shell](https://unix.stackexchange.com/questions/49428/focus-mouse-or-sloppy-do-the-same-thing-on-gnome-shell)
gsettings set org.gnome.desktop.wm.preferences auto-raise true

# Multitasking
gsettings set org.gnome.mutter dynamic-workspaces false
gsettings set org.gnome.desktop.wm.preferences num-workspaces 3
gsettings set org.gnome.desktop.interface enable-hot-corners false

# Power
gsettings set org.gnome.settings-daemon.plugins.power idle-dim false
gsettings set org.gnome.settings-daemon.plugins.power power-saver-profile-on-low-battery false
gsettings set org.gnome.desktop.session idle-delay 900
gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-timeout 0
gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-battery-timeout 0
gsettings set org.gnome.settings-daemon.plugins.power power-button-action 'nothing'
gsettings set org.gnome.desktop.interface show-battery-percentage 'true'

# Accessibility
gsettings set org.gnome.desktop.interface cursor-size 32
gsettings set org.gnome.desktop.interface text-scaling-factor 1.25
gsettings set org.gnome.desktop.interface locate-pointer true
gsettings set org.gnome.desktop.peripherals.keyboard repeat-interval 15
gsettings set org.gnome.desktop.peripherals.keyboard delay 250
gsettings set org.gnome.desktop.a11y.interface show-status-shapes true # new in Ubuntu 24.04 LTS

# Appearance
gsettings set org.gnome.desktop.interface color-scheme 'prefer-dark'
gsettings set org.gnome.Terminal.Legacy.Settings theme-variant 'dark'
gsettings set org.gnome.desktop.wm.preferences button-layout 'appmenu:minimize,maximize,close'

# Keyboard
gsettings set org.gnome.desktop.input-sources sources "[('xkb', 'us'), ('xkb', 'de')]"
#gsettings set org.gnome.desktop.input-sources xkb-options "['caps:ctrl_modifier']" ##### be careful, do not have CAPS LOCK enabled, when triggering this command!!!
#gsettings set org.gnome.desktop.input-sources xkb-options "['caps:escape']" ##### be careful, do not have CAPS LOCK enabled, when triggering this command!!!

# Shortcuts
## Window manager
gsettings set org.gnome.desktop.wm.keybindings switch-applications "['<Super>Tab']"
gsettings set org.gnome.desktop.wm.keybindings switch-applications-backward "['<Shift><Super>Tab']"
gsettings set org.gnome.desktop.wm.keybindings switch-windows "['<Alt>Tab']"
gsettings set org.gnome.desktop.wm.keybindings switch-windows-backward "['<Shift><Alt>Tab']"
gsettings set org.gnome.desktop.wm.keybindings show-desktop "['<Super>d']" # inspired by Windows + (D)

## Launchers
gsettings set org.gnome.settings-daemon.plugins.media-keys home "['<Super>e']" # inspired by Windows (E)xplorer
gsettings set org.gnome.settings-daemon.plugins.media-keys calculator "['<Super>c']" # (C)alculator
gsettings set org.gnome.settings-daemon.plugins.media-keys email "['<Super>b']" # Thunder(b)ird
gsettings set org.gnome.settings-daemon.plugins.media-keys help [] # leave it blank
gsettings set org.gnome.settings-daemon.plugins.media-keys www "['<Super>f']" # (F)irefox

## Volume
gsettings set org.gnome.settings-daemon.plugins.media-keys volume-down "['<Super><Alt>z']"
gsettings set org.gnome.settings-daemon.plugins.media-keys volume-up "['<Super><Alt>x']"
gsettings set org.gnome.settings-daemon.plugins.media-keys volume-mute "['<Super><Alt>space']"

## Text size
gsettings set org.gnome.settings-daemon.plugins.media-keys decrease-text-size "['<Super><Alt>period']"
gsettings set org.gnome.settings-daemon.plugins.media-keys increase-text-size "['<Super><Alt>slash']"

## Custom shortcut gnome-terminal
gsettings set org.gnome.settings-daemon.plugins.media-keys custom-keybindings "['/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/terminal/']"
gsettings set org.gnome.settings-daemon.plugins.media-keys.custom-keybinding:/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/terminal/ name 'Terminal'
gsettings set org.gnome.settings-daemon.plugins.media-keys.custom-keybinding:/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/terminal/ command 'gnome-terminal'
gsettings set org.gnome.settings-daemon.plugins.media-keys.custom-keybinding:/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/terminal/ binding '<Control><Alt>t'

gnome-tweaks

Install "gnome-tweaks" to get access to additional GNOME settings not available in "Settings" app

sudo apt install gnome-tweaks
  • General > Turn off "Suspend when laptop lid is closed"
  • Fonts > Increase "Scaling Factor" if necessary
  • Keyboard & Mouse > Set "Acceleration Profile" to "Flat"
  • Keyboard & Mouse > In "Additional Layout Options" > "Caps Lock behavior" select "Make Caps Lock an additional Esc, but Shift + Caps Lock is the regular Caps Lock"

gnome-extensions

browser connector and extensions manager

sudo apt-get install gnome-shell-extension-manager gnome-browser-connector

list all gnome extensions

Get a list of enabled gnome extensions with gsettings

gsettings get org.gnome.shell enabled-extensions

Activate pre-installed extension "workspace indicator" from gnome-core

gnome-extensions enable workspace-indicator@gnome-shell-extensions.gcampax.github.com

Extract infos about installed & enabled GNOME extensions:

gnome-extensions list --enabled > ~/installed_enabled_gnome_extensions.md

gnome-extensions list --enabled

Exemplary Output:

just-perfection-desktop@just-perfection
middleclickclose@paolo.tranquilli.gmail.com
trayIconsReloaded@selfmade.pl
tactile@lundal.io
weeks-start-on-monday@extensions.gnome-shell.fifi.org
drive-menu@gnome-shell-extensions.gcampax.github.com
nightthemeswitcher@romainvigier.fr
date-menu-formatter@marcinjakubowski.github.com
workspace-indicator@gnome-shell-extensions.gcampax.github.com
Vitals@CoreCoding.com
auto-move-windows@gnome-shell-extensions.gcampax.github.com
AlphabeticalAppGrid@stuarthayhurst
display-brightness-ddcutil@themightydeity.github.com
clipboard-indicator@tudmotu.com
ddterm@amezin.github.com

gnome-extension bugs

  • forge and ddterm do not work well together

How to reset extensions to their default values

Use dconf Editor: Seach for extension, right click on the folder and select "Reset recursively"

sudo apt install dconf-editor

Increase width of scrollbars in GTK3 and GTK4 applications

Create the following files in .config folder:

touch ~/.config/gtk-3.0/gtk.css
touch ~/.config/gtk-4.0/gtk.css

Write the following content into both .css files:

scrollbar slider {
 padding: 8px;
}